
x = int(input())
if 400 <= x < 600:
    ans = 8
elif 600 <= x < 800:
    ans = 7
elif 800 <= x < 1000:
    ans = 6
elif 1000 <= x < 1200:
    ans = 5
elif 1200 <= x < 1400:
    ans = 4
elif 1400 <= x < 1600:
    ans = 3
elif 1600 <= x < 1800:
    ans = 2
elif 1800 <= x < 2000:
    ans = 1
print(ans) x = int(input()) x int(input()) int input() input if 400 <= x < 600:
    ans = 8
elif 600 <= x < 800:
    ans = 7
elif 800 <= x < 1000:
    ans = 6
elif 1000 <= x < 1200:
    ans = 5
elif 1200 <= x < 1400:
    ans = 4
elif 1400 <= x < 1600:
    ans = 3
elif 1600 <= x < 1800:
    ans = 2
elif 1800 <= x < 2000:
    ans = 1 400 <= x < 600 400 <= x 400 x 600 ans = 8 ans 8 elif 600 <= x < 800:
    ans = 7 600 <= x < 800 600 <= x 600 x 800 ans = 7 ans 7 elif 800 <= x < 1000:
    ans = 6 800 <= x < 1000 800 <= x 800 x 1000 ans = 6 ans 6 elif 1000 <= x < 1200:
    ans = 5 1000 <= x < 1200 1000 <= x 1000 x 1200 ans = 5 ans 5 elif 1200 <= x < 1400:
    ans = 4 1200 <= x < 1400 1200 <= x 1200 x 1400 ans = 4 ans 4 elif 1400 <= x < 1600:
    ans = 3 1400 <= x < 1600 1400 <= x 1400 x 1600 ans = 3 ans 3 elif 1600 <= x < 1800:
    ans = 2 1600 <= x < 1800 1600 <= x 1600 x 1800 ans = 2 ans 2 elif 1800 <= x < 2000:
    ans = 1 1800 <= x < 2000 1800 <= x 1800 x 2000 ans = 1 ans 1 print(ans) print ans ans = 1 1 ans ans = 5 5 ans ans = 4 4 ans ans = 2 2 ans ans = 8 8 ans ans = 3 3 ans ans = 7 7 ans x = int(input()) int(input()) x ans = 6 6 ans

x = int(input())
if 400 <= x < 600:
    ans = 8
elif 600 <= x < 800:
    ans = 7
elif 800 <= x < 1000:
    ans = 6
elif 1000 <= x < 1200:
    ans = 5
elif 1200 <= x < 1400:
    ans = 4
elif 1400 <= x < 1600:
    ans = 3
elif 1600 <= x < 1800:
    ans = 2
elif 1800 <= x < 2000:
    ans = 1
print(ans)